My company announced a relocation away from my home town back in August 2015 which is finally going ahead in June. As a result I quickly knew I'd be getting a Brompton for my new enforced cycle/train commute but I've talked myself in to/out of Tannus tyres so many times over the past year after reading opinions across the web. Good to read some positive input here. The Brompton is due in about a week so I think I'm going to have a month or so on the Marathons I ordered it with but I'm liking the Tannus idea again for a relatively short commute due to the reliability. Especially as I can get them in green.
They would be fantastic on a Brompton. I've actually tested the ones I've fitted on the road bike, a lot more thoroughly than the ones I had on the Hybrid. I've given them a long ride, a wet ride, good surfaces, poor surfaces, commute type ride, high speed cornering on wet, dry, good and bad surfaces. They have performed brilliantly so far, I've actually had to remember to try and keep the miles off of the bike with them fitted, by not using it all the time

.